package com.jeecms.plug.weixin.wxpay.utils;


import org.apache.http.HttpResponse;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

public class GetWxOrderno
{
  public static CloseableHttpClient httpclient;

//  static
//  {
//    httpclient = new DefaultHttpClient();
//    httpclient = (DefaultHttpClient)HttpClientConnectionManager.getSSLInstance(httpclient);
//  }


  /**
   *description:获取预支付id
   *@param url
   *@param xmlParam
   *@return
   * @author ex_yangxiaoyi
   * @see
   */
  public static String getPayNo(String url,String xmlParam){
//	  DefaultHttpClient client = new DefaultHttpClient();
//	  client.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true);
	  CloseableHttpClient httpclient = GetWxOrderno.createDefault();
	  HttpPost httpost = new HttpPost(url);
	  String prepay_id = "";
     try {
		 httpost.setEntity(new StringEntity(xmlParam, "UTF-8"));
		 HttpResponse response = httpclient.execute(httpost);
	     String jsonStr = EntityUtils.toString(response.getEntity(), "UTF-8");
	    if(jsonStr.indexOf("FAIL")!=-1){
	    	return prepay_id;
	    }
	    Map map = doXMLParse(jsonStr);
	    prepay_id  = (String) map.get("prepay_id");
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	return prepay_id;
  }
  
  /**
   *description:获取扫码支付连接
   *@param url
   *@param xmlParam
   *@return
   * @author ex_yangxiaoyi
   * @see
   */
  public static String getCodeUrl(String url,String xmlParam){
	  CloseableHttpClient httpclient = GetWxOrderno.createDefault();
	  HttpPost httpPost = new HttpPost(url);
	  CloseableHttpResponse response=null;
	  String code_url = "";
	  try {
	  httpPost.setEntity(new StringEntity(xmlParam, "UTF-8"));
	  response = httpclient.execute(httpPost);
		  String jsonStr = EntityUtils.toString(response.getEntity(), "UTF-8");
		  if(jsonStr.indexOf("FAIL")!=-1){
			  return code_url;
		  }
		  Map map = doXMLParse(jsonStr);
		  code_url  = (String) map.get("code_url");
	  } catch (Exception e) {
		  e.printStackTrace();
	  }


//	  DefaultHttpClient client = new DefaultHttpClient();
//	  client.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true);
//	  HttpPost httpost= HttpClientConnectionManager.getPostMethod(url);
//	  String code_url = "";
//     try {
//		 httpost.setEntity(new StringEntity(xmlParam, "UTF-8"));
//		 HttpResponse response = httpclient.execute(httpost);
//	     String jsonStr = EntityUtils.toString(response.getEntity(), "UTF-8");
//	    if(jsonStr.indexOf("FAIL")!=-1){
//	    	return code_url;
//	    }
//	    Map map = doXMLParse(jsonStr);
//	    code_url  = (String) map.get("code_url");
//	} catch (Exception e) {
//		// TODO Auto-generated catch block
//		e.printStackTrace();
//	}
	return code_url;
  }
	/**
	 * Creates {@link CloseableHttpClient} instance with default
	 * configuration.
	 */
	public static CloseableHttpClient createDefault() {
		return HttpClientBuilder.create().build();
	}
  
  
  /**
	 * 解析xml,返回第一级元素键值对。如果第一级元素有子节点，则此节点的值是子节点的xml数据。
	 * @param strxml
	 * @return
	 * @throws JDOMException
	 * @throws IOException
	 */
	public static Map doXMLParse(String strxml) throws Exception {
		if(null == strxml || "".equals(strxml)) {
			return null;
		}
		
		Map m = new HashMap();
		InputStream in = String2Inputstream(strxml);
		SAXBuilder builder = new SAXBuilder();
		Document doc = builder.build(in);
		Element root = doc.getRootElement();
		List list = root.getChildren();
		Iterator it = list.iterator();
		while(it.hasNext()) {
			Element e = (Element) it.next();
			String k = e.getName();
			String v = "";
			List children = e.getChildren();
			if(children.isEmpty()) {
				v = e.getTextNormalize();
			} else {
				v = getChildrenText(children);
			}
			
			m.put(k, v);
		}
		
		//关闭流
		in.close();
		
		return m;
	}
	/**
	 * 获取子结点的xml
	 * @param children
	 * @return String
	 */
	public static String getChildrenText(List children) {
		StringBuffer sb = new StringBuffer();
		if(!children.isEmpty()) {
			Iterator it = children.iterator();
			while(it.hasNext()) {
				Element e = (Element) it.next();
				String name = e.getName();
				String value = e.getTextNormalize();
				List list = e.getChildren();
				sb.append("<" + name + ">");
				if(!list.isEmpty()) {
					sb.append(getChildrenText(list));
				}
				sb.append(value);
				sb.append("</" + name + ">");
			}
		}
		
		return sb.toString();
	}
  public static InputStream String2Inputstream(String str) {
		return new ByteArrayInputStream(str.getBytes());
	}
  
}